21113443322 has 8 divisors (see below), whose sum is σ = 31674389556. Its totient is φ = 10555313472.

The previous prime is 21113443319. The next prime is 21113443333. The reversal of 21113443322 is 22334431112.

It can be written as a sum of positive squares in 2 ways, for example, as 21025290001 + 88153321 = 145001^2 + 9389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21113443322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21113443291 and 21113443300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685253 + ... + 715400.

Almost surely, 2^21113443322 is an apocalyptic number.

21113443322 is a deficient number, since it is larger than the sum of its proper divisors (10560946234).

21113443322 is a wasteful number, since it uses less digits than its factorization.

21113443322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408192.

The product of its digits is 3456, while the sum is 26.

Adding to 21113443322 its reverse (22334431112), we get a palindrome (43447874434).

The spelling of 21113443322 in words is "twenty-one billion, one hundred thirteen million, four hundred forty-three thousand, three hundred twenty-two".